On Mon, Feb 07, 2011 at 06:52:00PM -0800, Frank Rowand wrote:
> On 02/07/11 04:22, Mark Brown wrote:
> > Since having the configuration option requires non-zero effort to
> > maintain, with ifdefery in most drivers, but it is used with vanishing
> > rarity it is simpler to just remove the option.
> Proof by assertion that it is used with vanishing rarity.
Sure, hopefully if it's incorrect people will come out of the woodwork
to correct me :)
> That is not a good method of getting feedback from users.
> 1) It immediately removes the ability to have CONFIG_PM undefined,
> without first giving active users a chance to provide feedback.
Note that it's not a terribly difficult change to reverse; if someone
urgently does need to do so then I'd be surprised if they were able to
build a kernel but not cope with that change.
> 2) The removal of that ability is not obvious ("make oldconfig" does
> not say anything about CONFIG_PM). It is easy to overlook a
> config change that happens silently.
It will expose the sub-options which actually do stuff, though - it's
only the top level option for PM.
> Would it be appropriate to use Documentation/feature-removal-schedule.txt
> if this truly will be removed?
I guess, though I'm a bit pessimistic about anyone actually noticing.
With Raphael's version it's not such a big deal as CONFIG_PM is selected
by other options that previously depended on it instead of being enabled
all the time.
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